scholarly journals Impacts of Land Use Changes on Soil Properties and Processes

2014 ◽  
Vol 2014 ◽  
pp. 1-2 ◽  
Author(s):  
Antonio Paz González ◽  
Cleide Aparecida de Abreu ◽  
Ana Maria Tarquis ◽  
Eduardo Medina-Roldán
Keyword(s):  
Land Use ◽  
Soil Properties ◽  
Land Use Changes

The effect of tropical peat land-use changes on plant diversity and soil properties

2019 ◽  
Vol 17 (3) ◽  
pp. 1703-1712 ◽  
Author(s):  
C. Agus ◽  
Z. R. Ilfana ◽  
F. F. Azmi ◽  
D. Rachmanadi ◽  
Widiyatno ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Properties ◽  
Plant Diversity ◽  
Land Use Changes ◽  
Tropical Peat

scholarly journals Effects of land use changes and soil conservation intervention on soil properties as indicators for land degradation under a Mediterranean climate

Solid Earth ◽  
2015 ◽  
Vol 6 (3) ◽  
pp. 857-868 ◽  
Author(s):  
Y. Mohawesh ◽  
A. Taimeh ◽  
F. Ziadat
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Properties ◽  
Land Degradation ◽  
Soil Conservation ◽  
Land Use Changes ◽  
Stone Walls ◽  
Effects Of Land Use ◽  
Soil Conservation Measures

Abstract. Land degradation resulting from improper land use and management is a major cause of declined productivity in the arid environment. The objectives of this study were to examine the effects of a sequence of land use changes, soil conservation measures, and the time since their implementation on the degradation of selected soil properties. The climate for the selected 105 km2 watershed varies from semi-arid sub-tropical to Mediterranean sub-humid. Land use changes were detected using aerial photographs acquired in 1953, 1978, and 2008. A total of 218 samples were collected from 40 sites in three different rainfall zones to represent different land use changes and variable lengths of time since the construction of stone walls. Analyses of variance were used to test the differences between the sequences of land use changes (interchangeable sequences of forest, orchards, field crops, and range), the time since the implementation of soil conservation measures, rainfall on the thickness of the A-horizon, soil organic carbon content, and texture. Soil organic carbon reacts actively with different combinations and sequences of land use changes. The time since stone walls were constructed showed significant impacts on soil organic carbon and the thickness of the surface horizon. The effects of changing the land use and whether the changes were associated with the construction of stone walls varied according to the annual rainfall. The changes in soil properties could be used as indicators of land degradation and to assess the impact of soil conservation programs. The results help in understanding the effects of land use changes on land degradation processes and carbon sequestration potential and in formulating sound soil conservation plans.

scholarly journals Effects of Afforestation on Plant Diversity and Soil Quality in Semiarid SE Spain

Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1730
Author(s):  
Carmen Segura ◽  
María N. Jiménez ◽  
Emilia Fernández-Ondoño ◽  
Francisco B. Navarro
Keyword(s):  
Land Use ◽  
Soil Properties ◽  
Soil Quality ◽  
Plant Diversity ◽  
Land Use Changes ◽  
Soil Quality Indicators ◽  
Higher Plant ◽  
Se Spain ◽  
Semiarid Environments ◽  
Edaphic Variables

Farmland afforestation has been promoted in recent decades and is one of the main strategies included in the UN Decade on Ecosystem Restoration to recover degraded areas. However, the impacts of afforestation on plant diversity and soil quality indicators are still not well-understood in semiarid environments. In this study, we assessed the relationships between plant diversity indicators (abundance, total richness, richness by functional groups, and Shannon diversity) and a large number of variables in 48 afforestation sites in southeast Spain. We considered associated environmental factors, such as geographical, climatic or edaphic variables, age, and land-use history. We compared plant diversity and soil properties following land-use change from cereal cropping to afforestation, which is one of the most common land-use changes in Mediterranean areas. Plant diversity in afforested sites was found to be dependent on previous land use, the proximity of natural vegetation, several soil properties (texture, pH, and total nitrogen), and plantation age. Afforested soils showed higher plant diversity and an improvement in edaphic parameters related to multifunctionality in semiarid ecosystems (i.e., soil organic carbon, nitrogen, and potassium) than arable cropped soils.

scholarly journals Land Use and Land Cover Dynamics and Properties of Soils under Different Land Uses in the Tejibara Watershed, Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Sabiela Fekad Fentie ◽  
Kehali Jembere ◽  
Endalkachew Fekadu ◽  
Dessale Wasie
Keyword(s):  
Land Use ◽  
Image Analysis ◽  
Land Cover ◽  
Soil Properties ◽  
Land Use Changes ◽  
Total N ◽  
Chemical Soil ◽  
Grazing Lands ◽  
Physical And Chemical

Land use changes have long been considered among many factors responsible for physical and chemical soil degradation. This study was conducted to evaluate land use and land cover (LULC) changes and their cumulative effects over 30 years (from 1989 to 2019) on the current physical and chemical properties of soils in the Tejibara watershed, Ethiopia. Image analysis and LULC classifications were performed using ERDAS IMAGINE 2014 and ArcGIS 10.4 software, respectively. For the determination of soil properties, four land use types (natural forest, eucalyptus plantation, cultivated, and grazing lands) and two soil depths (0–20 and 20–40 cm) were used. Triplicate composite soil samples were collected from each land use type and soil depths. For the determination of physical (texture and bulk density) and chemical soil properties such as electrical conductivity (EC), organic matter (OM), total nitrogen (TN), and available phosphorus (AP), standard laboratory procedures were employed. The image analysis results for all of the years studied show that cultivated lands have increased in area at the expense of forest and grazing lands. Silt content, clay content, AP, and pH were significantly affected by land use as the main effect while the interaction effects of soil depth and land use were significant for total N and OM only. The highest (10.1 mg/kg) and the lowest (4.9 mg/kg) AP contents were observed in the forest and the grazing lands, respectively. Soil total N content was highest in the forest lands (0.32%) and lowest in cultivated lands (0.06%). Concerning OM content, the highest (11.0%) and the lowest (0.8%) values were recorded in the forest and cultivated lands, respectively. Generally, this study showed that land use changes have reduced the areal coverage by forest and grazing lands and have negatively affected the soil properties. This implies that land use change without soil fertility measures that are appropriate to the area could cause enhanced land degradation and thereby reduce the productivity of the study area soils.

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